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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '4820c0329506968727974a68f30b487f92fe5f0fa169fe5a54affd55bc0bbfae' 
  AND token = 'ZlL9TpN2pL/nlxT/yJ29ozqzSdgdExBjcGvSao3dRcQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}